In this period the colours were the most important thing on the battlefield. Men rallied round and died protecting them.
Now with the spawn system in place, in game the flag is just as important. It would be very beneficial to be able to pick up a fallen flag, it means out the colours fall, someone else will rescue and carry them
You could even add this as a capture mechanic, taking out and picking up the enemy colours and taking them back to your formation could increase the local cap for a point or even demoralize the enemy who would for instance suffer 40% reduction when dying in formation rather than 80% for a couple of minutes and full ticket loss when skirmishing. Or less. I guess it would have to be balanced/playtested.
Thoughts?